Manual

Publication LOGIX-UM001B-EN-P - April 2010 99
Equipment Phase Instructions (PSC, PCMD, POVR, PFL, PCLF, PXRQ, PRNP, PPD, PATT, PDET) Appendix A
PATT Result Codes
If you assign a tag to store the result of a PATT instruction, the instruction
returns one of the following codes when it executes.
Arithmetic Status Flags: not affected
Fault Conditions: none
Execution:
Code (Dec) Description
0 The command was successful.
24579 RSLogix 5000 software already owns the equipment phase.
• This program now also owns the equipment phase.
• Because RSLogix5000 software is higher priority than a program, the
program cannot command the equipment phase.
24582 The program already owns the equipment phase.
24593 One of the following already owns the equipment phase.
• external sequencer (FactoryTalk Batch software)
• another program in the controller
24594 Equipment phase is inhibited, unscheduled, or in a task that is inhibited.
Condition Relay Ladder Action Structured Text Action
prescan The rung-condition-out is set to false. No action taken.
rung-condition-in is false The rung-condition-out is set to false. N/A
rung-condition-in is true • The instruction executes.
• The rung-condition-out is set to true.
N/A
scan of structured text N/A In structured text, instructions execute each time
they are scanned. To limit the scan of an instruction,
use a qualifier of an SFC action and/or a structured
text construct.
instruction execution The instruction tries to take ownership of the
specified equipment phase.
The instruction tries to take ownership of the
specified equipment phase.
postscan The rung-condition-out is set to false. No action taken.